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NanoGPT

GPT 5 Mini model ID, context window & pricing

gpt-mini

Quick facts

Model ID openai/gpt-5-mini
Source NanoGPT
Context Window 400000
Pricing $0.25 input / $2.00 output per 1M tokens
Capabilities reasoning

Model overview

GPT 5 Mini is an AI model from NanoGPT with 400000 token context window and text, image input support.

Published pricing is $0.25 input and $2.00 output per 1M tokens.

  • Workloads that use text, image inputs with text outputs.
  • Reasoning-heavy prompts where stepwise problem solving matters.
Model ID openai/gpt-5-mini
Provider NanoGPT
Family gpt-mini
Status -
Knowledge Cutoff -
Release Date 2025-08-07
Input Modalities text, image
Output Modalities text
Context Window 400000
Input Limit 400000
Output Limit 128000
Tool Calling No
Reasoning Yes
Structured Output No
Temperature Control -
Open Weights No
Input Cost / 1M tokens $0.25
Output Cost / 1M tokens $2.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens -
Cache Write Cost / 1M tokens -